Hi Akhilesh,
I have created multiple schemas and found a way to process them.
I have used wait_for_file() to extract file_list,then extracted the single xml file/path of the xml file using instr() custom function and then using a variable I passed it to the xml schema and concating the file name to it.
ex :$Path_Variable ||'file_name.xml'
Regards
P.Srinivas.